UDF table
 

Dear all,

I would like to create an UDF where I define a table with 2 columns.
time | mass flow rate

Lets say at the end there are 100 times and 100 corresponding values.
Between these values a linear interpolation would be nice.

Is this difficult to handle? I always find time-dependent functions but nothing with certain values.

Thanks a lot in advance.

I would simply read the values into a global 2-d array at the beginning of the run.

You'll need to write your own linear interpolation function, but if you're doing CFD it shouldn't be too hard ;)

Then, you can call the interpolation in your define profile function (for mass rate), passing it the actual flow time and returning a double which represents the mass flow rate.

If you need more help, let us know!

ComputerGuy

Hi and thanks for the answer. I solved it and it was much easier than I thought... :)